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  <text>OK, this isn't the ideal solution but it will get you there...

From a command prompt:
cleartool lshistory -me -r /AppRSNT /Base /Calc /Com /Common /Image /Intern /Look /Model /View &gt; c:\history.txt

This will dump a large txt file at the specified location containing the comments for your activities.  Then from a text editor, you can find out which files changed by searching through your comments.  There are probably better ways to do this, but my attention span ran out before I could decipher the command options for "lshist" and "find".

Sample output:
&lt;code&gt;
13-Sep.13:24   codonnel   create version "/Model\dicomfileio\cpp\compressedimagebitsimpl.cpp@@\main\138"
  "Fix for bug 15162."
13-Sep.13:24   codonnel   create version "/Model\dicomfileio\cpp\compressedimagebitsimpl.h@@\main\77"
  "Fix for bug 15162."
&lt;/code&gt;

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  <last_update>2007-10-04T00:52:19.0310806Z</last_update>
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